After Calculating the Sample Size Needed to Estimate a Population

question 30

Multiple Choice

After calculating the sample size needed to estimate a population proportion to within 0.05,you have been told that the maximum allowable error (B) must be reduced to just 0.025.If the original calculation led to a sample size of 1000,the sample size will now have to be

• A)2000.
• B)4000.
• C)1000.
• D)8000.

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Definitions:

EEG Recording

An EEG Recording refers to the process of measuring electrical activity in the brain using electrodes placed on the scalp, often used in the diagnosis of neurological conditions and the study of brain functions.

REM Sleep Episodes

Periods during sleep characterized by rapid eye movement, during which dreaming often occurs and brain activity resembles that of being awake.

Typical Adult

Describes the characteristics, behaviors, or attributes that are considered normal or average for an adult human.

Episodes per Night

refers to the number of distinct events or occurrences of a particular phenomenon (such as sleep disturbances or apnea episodes) that happen during a night's sleep.